/*
 * Copyright 2021 Muii
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitee.muii.echarts.constant.string;

public class Step extends StringConstants {

    private static Step step;

    public static Step getInstance() {
        if (step == null) {
            step = new Step();
        }
        return step;
    }

    private Step() {
        this.add(START);
        this.add(MIDDLE);
        this.add(END);
    }

}
